Convert 1 foot 8 inches to inches

"Feet to Inches" Calculator
Convert
ft
and
in
to Inches

How many inches in 1 foot 8 inches?

Answer

1'8" = 20″

1′8″ = 20″ · 1 ft = 12 in

1′ = 12 in1 × 12 + 8 = 20 in

See Also

FAQ

How many inches in 1 foot 8 inches?

1'8" = 20″

What is the formula to convert 1 foot 8 inches to inches?

A foot is exactly twelve inches, so multiply the feet by 12 and add any leftover inches: 1 foot 8 inches = 20 inches.

How do you convert 20 inches back to feet and inches?

Divide by 12: the whole part is the number of feet and the remainder is the inches. That turns 20 inches back into 1 foot 8 inches.

Is a foot exactly twelve inches?

Yes, and it has been since the 1959 international agreement that also fixed the foot at 0.3048 m. Because the ratio is a whole number, 1 foot 8 inches equals 20 inches with nothing rounded away.